[Baekjoon Online Judge] 10872 - 팩토리얼 / Java

https://www.acmicpc.net/problem/10872

10872번: 팩토리얼

풀이

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static int factorial(int n) {
		if(n <= 1) {
			return 1;
		}
		return n * factorial(n-1);
	}
	
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
		int n = Integer.parseInt(br.readLine());
		
		System.out.println(factorial(n));
	}
}